Suction canister



FIG. 1 is a front perspective view of the suction canister showing our new design, having a lid shown in phantom, installed thereof;

FIG. 2 is a side view thereof; the other side view being a mirror image thereof;

FIG. 3 is a top view thereof; and,

FIG. 4 is a bottom view thereof. 

The ornamental design for a suction canister, as shown and described. 